
\begin{table}
\begin{center}
\begin{tabular}{l c}
\hline
 & Model 1 \\
\hline
Period     & $-0.02^{*}$ \\
           & $(0.01)$    \\
Constant   & $0.26^{*}$  \\
           & $(0.04)$    \\
\hline
Adj. R$^2$ & $0.01$      \\
Num. obs.  & $231$       \\
N Clusters & $40$        \\
\hline
\multicolumn{2}{l}{\scriptsize{$^{*}p<0.05$}}
\end{tabular}
\caption{Statistical models}
\label{table:coefficients}
\end{center}
\end{table}
